25725271542 has 16 divisors (see below), whose sum is σ = 51593863680. Its totient is φ = 8551203752.

The previous prime is 25725271531. The next prime is 25725271553. The reversal of 25725271542 is 24517252752.

It is an interprime number because it is at equal distance from previous prime (25725271531) and next prime (25725271553).

It is a junction number, because it is equal to n+sod(n) for n = 25725271494 and 25725271503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5969358 + ... + 5973665.

It is an arithmetic number, because the mean of its divisors is an integer number (3224616480).

Almost surely, 2^25725271542 is an apocalyptic number.

25725271542 is an abundant number, since it is smaller than the sum of its proper divisors (25868592138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25725271542 is a wasteful number, since it uses less digits than its factorization.

25725271542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11943387.

The product of its digits is 392000, while the sum is 42.

The spelling of 25725271542 in words is "twenty-five billion, seven hundred twenty-five million, two hundred seventy-one thousand, five hundred forty-two".